Home / 3,546,420.60-5,319,630.90-2,128,078.20

Finding the Fourth Proportional to 3,546,420.60, 5,319,630.90 and 2,128,078.20

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Solution

The fourth proportional to 3,546,420.60, 5,319,630.90 and 2,128,078.20 is: 3,192,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546,420.60 : 5,319,630.90 = 2,128,078.20 : x
  2. Step 2: Convert to fraction form
    3,546,420.60/5,319,630.90 = 2,128,078.20/x
  3. Step 3: Cross multiply
    3,546,420.60x = 5,319,630.90 × 2,128,078.20
  4. Step 4: Simplify right side
    3,546,420.60x = 11,320,590,550,336.38
  5. Step 5: Solve for x
    x = 11,320,590,550,336.38/3,546,420.60
  6. Step 6: Final answer
    x = 3,192,117.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.